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Earthquake recurrence estimates for northern Caribbean faults from combinatorial optimization

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Woods Hole Coastal and Marine Science Center

2023 Annual Report

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Pragmatically mapping Phragmites with unoccupied aerial systems: A comparison of invasive species land cover classification using RGB and multispectral imagery

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Hydroacoustic observations reveal drivers of mixing and salinization of a karst subterranean estuary during intense precipitation

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Scientific literature and information products produced by Woods Hole Coastal and Marine Science Center staff

Featured Journal Article

Invasive Phragmites plants on the shore of a lake

Pragmatically mapping Phragmites with unoccupied aerial systems: A comparison of invasive species land cover classification using RGB and multispectral imagery

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Featured USGS Series

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Woods Hole Coastal and Marine Science Center—2023 Annual Report.  The 2023 annual report highlights accomplishments, includes a list of publications, and summarizes the work of the center and each of the science groups.

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Sound Waves

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Coastal and Marine Research News from Across the USGS

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Filter Total Items: 1737

U.S. Geological Survey ArcMap Sediment Classification tool U.S. Geological Survey ArcMap Sediment Classification tool

The U.S. Geological Survey (USGS) ArcMap Sediment Classification tool is a custom toolbar that extends the Environmental Systems Research Institute, Inc. (ESRI) ArcGIS 9.2 Desktop application to aid in the analysis of seabed sediment classification. The tool uses as input either a point data layer with field attributes containing percentage of gravel, sand, silt, and clay or four raster...
Authors
John O’Malley
By
Woods Hole Coastal and Marine Science Center

Geophysical mapping of oyster habitats in a shallow estuary: Apalachicola Bay, Florida Geophysical mapping of oyster habitats in a shallow estuary: Apalachicola Bay, Florida

This report presents high-resolution geophysical data, interpretive maps, and a preliminary discussion about the oyster habitat and estuary-floor geology within Apalachicola Bay, Florida (fig. 1). During two research cruises, conducted in 2005 and 2006, approximately 230 km² of the bay floor were surveyed using interferometric-bathymetry, sidescan-sonar, and chirp seismic-reflection...
Authors
David C. Twichell, Brian D. Andrews, H. Lee Edmiston, William R. Stevenson
By
Woods Hole Coastal and Marine Science Center

Sea-floor character and sedimentary processes of Great Round Shoal Channel, offshore Massachusetts Sea-floor character and sedimentary processes of Great Round Shoal Channel, offshore Massachusetts

The imagery, interpretive data layers, and data presented herein were derived from multibeam echo-sounder and sidescan-sonar data collected in the vicinity of Great Round Shoal Channel, the main passage through shoals located at the eastern entrance to Nantucket Sound, Massachusetts, and from the stations occupied to verify these acoustic data (fig. 1). Basic data layers show sea-floor...
Authors
Lawrence J. Poppe, Seth D. Ackerman, David S. Foster, Dann S. Blackwood, S. Jeffress Williams, M. S. Moser, H.F. Stewart, K.A. Glomb
By
Woods Hole Coastal and Marine Science Center

Effect of storms on barrier island dynamics, Core Banks, Cape Lookout National Seashore, North Carolina, 1960-2001 Effect of storms on barrier island dynamics, Core Banks, Cape Lookout National Seashore, North Carolina, 1960-2001

The effect of storms on long-term dynamics of barrier islands was evaluated on Core Banks, a series of barrier islands that extend from Cape Lookout to Okracoke Inlet in the Cape Lookout National Seashore, North Carolina. Shoreline and elevation changes were determined by comparing 77 profiles and associated reference markers established by the U.S. Army Corps of Engineers (USACE) on...
Authors
Stanley R. Riggs, Dorothea V. Ames
By
Water Resources Mission Area, Woods Hole Coastal and Marine Science Center, South Atlantic Water Science Center (SAWSC)

The geology of Six Mile Reef, eastern Long Island Sound The geology of Six Mile Reef, eastern Long Island Sound

Digital terrain models, which can be produced from multibeam bathymetric data, are ordered arrays of depths for a number of sea-floor positions sampled at regularly spaced intervals. These models provide valuable base maps for marine geological interpretations that help define the variability of the sea floor (one of the primary controls of benthic habitat diversity), improve our...
Authors
L.J. Poppe, J. F. Denny, S.J. Williams, M. S. Moser, N.A. Forfinski, H.F. Stewart, E. F. Doran
By
Woods Hole Coastal and Marine Science Center

Sidescan-sonar imagery, multibeam bathymetry, and surficial geologic interpretations of the sea floor in Rhode Island Sound, off Sakonnet Point, Rhode Island Sidescan-sonar imagery, multibeam bathymetry, and surficial geologic interpretations of the sea floor in Rhode Island Sound, off Sakonnet Point, Rhode Island

The U.S. Geological Survey (USGS) is working with the National Oceanic and Atmospheric Administration (NOAA) to interpret the surficial geology in estuaries and sounds along the northeastern coast of the United States. This report interprets the area covered by NOAA Survey H11320, about 72 km² of sea floor in eastern Rhode Island Sound (RIS), located about 8 km south of Sakonnet Point...
Authors
Katherine Y. McMullen, Lawrence J. Poppe, Erin R. Twomey, William W. Danforth, Todd A. Haupt, James M. Crocker
By
Woods Hole Coastal and Marine Science Center

Time-series photographs of the sea floor in western Massachusetts Bay, version 2, 1989 - 1996 Time-series photographs of the sea floor in western Massachusetts Bay, version 2, 1989 - 1996

Time-series photographs of the sea floor were obtained from an instrumented tripod deployed in western Massachusetts Bay at LT-A (42° 22.6' N, 70° 47.0' W; nominal water depth of 32 m; fig. 1) from December 1989 through September 2005. The photographs provide time-series observations of physical changes of the sea floor, near-bottom water turbidity, and life on the sea floor. Several...
Authors
Bradford Butman, P. Soupy Dalyander, Michael H. Bothner, William N. Lange
By
Woods Hole Coastal and Marine Science Center

Processes influencing the transport and fate of contaminated sediments in the coastal ocean– Boston Harbor and Massachusetts Bay Processes influencing the transport and fate of contaminated sediments in the coastal ocean– Boston Harbor and Massachusetts Bay

Most of the major urban centers of the United States including Boston, New York, Washington, Chicago, New Orleans, Miami, Los Angeles, San Francisco, and Seattle—are on a coast (fig. 1.1). All of these cities discharge treated sewage effluent into adjacent waters. In 2000, 74 percent of the U.S. population lived within 200 kilometers (km) of the coast. Between 1980 and 2002, the...
Authors
P. Soupy Alexander, Sandra M. Baldwin, Dann S. Blackwood, Jonathan Borden, Michael A. Casso, John Crusius, Joanne Goudreau, Linda H. Kalnejais, Paul J. Lamothe, William R. Martin, Marinna A. Martini, Richard R. Rendigs, Frederick L. Sayles, Richard P. Signell, Page C. Valentine, John C. Warner
By
St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center

Thermal properties of methane gas hydrates Thermal properties of methane gas hydrates

Gas hydrates are crystalline solids in which molecules of a “guest” species occupy and stabilize cages formed by water molecules. Similar to ice in appearance (fig. 1), gas hydrates are stable at high pressures and temperatures above freezing (0°C). Methane is the most common naturally occurring hydrate guest species. Methane hydrates, also called simply “gas hydrates,” are extremely...
Authors
William F. Waite
By
Woods Hole Coastal and Marine Science Center

Digital outlines and topography of the glaciers of the American West Digital outlines and topography of the glaciers of the American West

Alpine glaciers have generally receded during the past century (post-“Little Ice Age”) because of climate warming (Oerlemans and others, 1998; Mann and others, 1999; Dyurgerov and Meier, 2000; Grove, 2001). This general retreat has accelerated since the mid 1970s, when a shift in atmospheric circulation occurred (McCabe and Fountain, 1995; Dyurgerov and Meier, 2000). The loss in glacier...
Authors
Andrew G. Fountain, Matthew Hoffman, Keith Jackson, Hassan Basagic, Thomas Nylen, David Percy
By
Woods Hole Coastal and Marine Science Center

Geologic interpretation and multibeam bathymetry of the sea floor in the vicinity of the Race, eastern Long Island Sound Geologic interpretation and multibeam bathymetry of the sea floor in the vicinity of the Race, eastern Long Island Sound

Digital terrain models (DTMs) produced from multibeam bathymetric data provide valuable base maps for marine geological interpretations (Todd and others, 1999; Mosher and Thomson, 2002; ten Brink and others, 2004; Poppe and others, 2006a, b, c, d). These maps help define the geological variability of the sea floor (one of the primary controls of benthic habitat diversity), improve our
Authors
L.J. Poppe, M. L. DiGiacomo-Cohen, E. F. Doran, S. M. Smith, H.F. Stewart, N.A. Forfinski
By
Woods Hole Coastal and Marine Science Center

Sea-floor character and surface processes in the vicinity of Quicks Hole, Elizabeth Islands, Massachusetts Sea-floor character and surface processes in the vicinity of Quicks Hole, Elizabeth Islands, Massachusetts

The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and the Massachusetts Office of Coastal Zone Management (MA CZM), is producing detailed geologic maps of the coastal sea floor. The imagery, interpretive data layers, and data presented herein were derived from multibeam echo-sounder and sidescan sonar surveys conducted in...
Authors
Lawrence J. Poppe, Seth D. Ackerman, David S. Foster, Dann S. Blackwood, Bradford Butman, M. S. Moser, H.F. Stewart
By
Woods Hole Coastal and Marine Science Center
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